Requiem

After a new discovery, Kendrick agrees to do everything in his power to reopen the case. Laura tries to warn Matilda that she is in grave and imminent danger, but Matilda is starting to have doubts about whoshe can trust. Hal's blossoming romance with Trudy allows him to reflect on his relationship with Matilda. He resolves to get to the bottom of the Penllynith mystery once and for all. Graves becomes increasingly convinced that Ed and Aron are hiding something.

After her mother commits suicide in front of her, Matilda finds a mysterious box that leads her to the disappearance of a little girl twenty-four years earlier in Wales. Invited to a mansion, Matilda is convinced she has been there before.

Aron lodges a complaint against Matilda. The police are unmoved by a clue to Carys's disappearance. Trudy is wracked by guilt and meets Matilda. Rose is pushed to breaking point as old wounds are reopened.